Introduction In this lab a study of fruit fly genetics was done these creature are readily used for genetic studies .they are easy to maintain. And the females lay a lot off eggs which develop in about two weeks. Fruit fly’s have for distinct stages‚ the egg‚ larva‚ pupa and adult. the egg and larva stages last for eight days‚ the pupal stage last for six days and then the adult stage which last for many weeks this period of growth is called instars. In this lab a dihybrid cross was performed
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The ‘Experiment’ by Dr Haskell portrays the unusual experiment that he conducted to compare his bare body and a Chickadees body in harsh freezing conditions. He decided to investigate it further because there was no logical explanation for a tiny bird to be able to survive in such conditions. He related his astonishment to the Bergmann’s rule‚ which states that larger animals will be found in colder climates and smaller animals will be found in warmer climates. Haskell found that the Chickadees
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photosynthesis. Problem What is the relationship between light intensity and the rate of photosynthesis? Pre-Lab Discussion Read the entire investigation. Then‚ work with a partner to answer the following questions. 1. What are the variables in this experiment? Identify the manipulated and responding variables and two controlled variables. The manipulated variable is light intensity. The responding variable is pH. Controlled variables include the initial pH‚ the size of the plant sprigs‚ and time
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PROCEDURE Part I Setting Up Experiment 2D: Separation of a mixture by Paper Chromatography Objectives: 1. To assemble and operate a paper chromatography apparatus 2. To study and the significance of Rf values 3. To test various food colorings and to calculate their Rf values 4. To compare measured Rf values with standard Rf values 5. To separate mixtures of food coloring into their components 6. To identify the components of mixtures by means of their Rf values Materials / Apparatus: See “Health
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GCSE Biology This blog will cover and explain the specification for Edexcel triple science course 2013 for biology. Hope it helps :) Monday‚ 20 May 2013 3.33 understand that the incidence of mutations can be increased by exposure to ionising radiation (for example gamma rays‚ X-rays and ultraviolet rays) and some chemical mutagens (for example chemicals in tobacco). There are things that make you more likely to have a mutated gene‚ these include: ionising radiation and chemical mutagens like
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compound containing the CO2 R group (see chapter 11 for definitions of acids‚ esters‚ and alcohols). Esters usually have pleasant‚ fruit-like odors and are the chemicals responsible for the odors and flavors of many fruits (oranges‚ bananas‚ pineapples) and flowers. In most cases‚ such natural products get their properties from a mixture of organic compounds. In this experiment you will prepare two esters of o-hydroxybenzoic acid‚ more commonly known as salicylic acid. One of the esters‚ acetylsalicylic
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From Wikipedia‚ the free encyclopedia (http://en.wikipedia.org/wiki/Fruit) Several culinary fruits Culinary fruits In botany‚ a fruit is a part of a flowering plant that derives from specific tissues of the flower‚ one or more ovaries‚ and in some cases accessory tissues. Fruits are the means by which these plants disseminate seeds. Many of them that bear edible fruits‚ in particular‚ have propagated with the movements of humans and animals in a symbiotic relationship as a means for seed
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GREEN TEAMS Engaging Employees in Sustainability By Deborah Fleischer President Green Impact GreenBiz Reports ® GREEN TEAMS: Engaging Employees in Sustainability BY DEBORAH FLEISCHER November 2009 Helping companies go green Sustainability Strategy Employee Engagement Program Development Communications 390 Throckmorton · Mill Valley‚ CA 94941 · (415) 302-2655 www.GreenImpact.com www.GreenImpact.com GREEN TEAMS: Engaging Employees in Sustainability
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Observations of Chemical Changes Purpose: To observe some properties of chemical reactions and associate them with everyday household cleaning products. Procedure: In order to complete this experiment‚ I had to set up and organize my lab table. I used my 24-well plate‚ my 96-well plate‚ and the first experiment bag which included all of the necessary chemicals. I also had to gather 3 household cleaning products and a pipet in order to test them as well. The procedure involved was putting 2 drops of
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GREEN MARKETING A PROJECT REPORT SUBMITTED BY: AVTAR GUJRAL ROLL NO. 121330 in partial fulfilment for the award of the degree of BACHELOR OF COMMERCE(HONS) DELHI UNIVERSITY S.G.G.S.C.C. COLLEGE‚ DELHI 2015 DECLARATION This is to certify that the project work entitled “ GREEN MARKETING” has been completed by me under the guidance and supervision of Mrs.Bimaldeep Kaur in partial fulfillment as a requirement for an award of degree of B.Com(Hons)‚ Delhi University. I futher certify
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